Myositis ossificans traumatica, right lower leg

This code describes the formation of heterotopic bone within the muscle tissue of the right lower leg, specifically as a result of trauma. This condition, also known as myositis ossificans circumscripta, involves the abnormal growth of bone in soft tissues where bone does not normally exist, typically following a significant injury.

Use this code when documentation clearly indicates myositis ossificans in the right lower leg, and the etiology is directly linked to a traumatic event. Supporting documentation would include imaging reports (X-ray, CT, MRI) confirming heterotopic ossification and physician notes detailing a history of trauma to the affected area.

• Ensure laterality is explicitly documented as "right lower leg" to support this specific code.
• Distinguish from other forms of myositis ossificans (e.g., progressive, non-traumatic) which have different codes.
• Code any underlying or associated traumatic injury (e.g., fracture, contusion) separately, following sequencing guidelines.